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35840615112_e705ef8e60_b.jpg17th July Full Disc and Proms inverted by Stephen Jennette, on Flickr

 

 

 

Goodbye to Active Region AR2665.

The biggest, most active sunspot of 2017 to date slides around the Sun and off the disc.

 

6 pane mosaic.

Lunt L60 pressure tuned with 50mm double-stacked etalon.

PowerMate 2.5

ASI 174 mono camera.

Stacked in Autostakkert 3. Sharpened in ImPPG and final processing in Photoshop

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Great image and great resolution from a 60mm scope with so many prominences - Tony

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very nice image.

                    Bob.

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